Synergistic effect of MgO and CeO2 as a support for ruthenium catalysts in ammonia synthesis

被引：64
作者：
Saito, M
Itoh, M
Iwamoto, J
Li, CY
Machida, K
机构：
[1] Osaka Univ, Ctr Adv Sci & Innovat, Suita, Osaka 5650871, Japan
[2] Osaka Univ, Handai Frontier Res Ctr, Suita, Osaka 5650871, Japan
来源：
CATALYSIS LETTERS | 2006年 / 106卷 / 3-4期
关键词：
ammonia synthesis; MgO-CeO2; support; ruthenium catalyst; metal-support interaction; microstructure;
D O I：
10.1007/s10562-005-9615-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Nanocomposite materials in MgO-CeO2 (Ce=0-100 mol%) system were prepared as the support materials for Ru-based ammonia synthesis catalysts, so that the resultant catalytic activity was enhanced by mixing them together compared with that of the MgO or CeO2 component was solely used as a support. Such high catalytic activity was due to two effects: electrodonating property of partially reduced CeO2-delta to Ru metal and strong metal-support interaction derived from the unique catalyst morphology in this study.
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页码：107 / 110
页数：4
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